package bh;

import java.util.Scanner;

public class A4 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int b = in.nextInt();
        int c = in.nextInt();
        if (a>=1 && a<=10 &&b>=1 && b<=10 && c>=1 && c<=10){
            if(a+b>c && a+c>b && c+b>a){
                if (a==b && b==c){
                    System.out.println("能组成等边三角形");
                }else if(a==b || b==c ||c==a){
                    System.out.println("能组成等腰三角形");
                }else {
                    System.out.println("能组成普通三角形");
                }
            }else {
                System.out.println("输入边值不能组成三角行");
            }
        }else {
            System.out.println("输入边值不在范围内，请重新输入");
        }
    }
}
